<h2>Delete picture</h2>
<form action="<?php echo $t['submit_route']; ?>" method="post">
<input type="hidden" name="force_delete" value="1"/>

<div class="center">I really want to delete image with name “<?php echo htmlspecialchars($t['image_name']);?>”.</div>
<div class="center"><input type="submit" value="delete"/></div>
</form>